Microrheological Characterisation of Anisotropic Materials

dc.creatorHasnain, I A
dc.creatorDonald, A M
dc.date2005-06-06
dc.date2006-03-03
dc.date.accessioned2026-07-07T06:37:55Z
dc.date.available2026-07-07T06:37:55Z
dc.descriptionWe describe the measurement of anisotropic viscoelastic moduli in complex soft materials, such as biopolymer gels, via video particle tracking microrheology of colloid tracer particles. The use of a correlation tensor to find the axes of maximum anisotropy, and hence the mechanical director, is described. The moduli of an aligned DNA gel are reported, as a test of the technique; this may have implications for high DNA concentrations in vivo. We also discuss the errors in microrheological measurement, and describe the use of frequency space filtering to improve displacement resolution, and hence probe these typically high modulus materials.
dc.description5 pages, 5 figures. Replaced after refereeing/ improvement. Main results are the same. The final, published version of the paper is here http://link.aps.org/abstract/PRE/v73/e031901
dc.identifierhttps://arxiv.org/abs/cond-mat/0506131
dc.identifierhttp://arxiv.org/abs/cond-mat/0506131
dc.identifierPhys. Rev. E 73 031901 (2006)
dc.identifierdoi:10.1103/PhysRevE.73.031901
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/100561
dc.subjectSoft Condensed Matter
dc.titleMicrorheological Characterisation of Anisotropic Materials
dc.typetext

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